Atmospheric engine.



v w. H. ySPEIRS am. HoLM.

` AATM@SPHBRLGENGINE.

AI"PLIOA'I'IOI\I FILED DBO. 16 1907.

923,086. w Patenteamay 25,1909.`

S11 uc mfom Vea.

WILLIAMKH. sPEIRs AND ANTON nomi, or PATEEsoN, NEW JERSEY.

ATuosrBEn'rc ENGINE.

To'all whom'fitmay concern." y

Be itknown that we, WILLIAM H. SPEras andfAN'roN HoLM citizens of theUni-ted States, residing-at li'aterson, in the county of i 5 Passaic andState of New Jersey, have 'inl vented certain new. and usefulImprovements c `1n Atmospheric Engines; and we do declare ,f thefollowing to be a full, clear, and exact de- 'scription of theinvention, such as will enable `110 others skilled in the art to whichit appertains to make anduse the same.

.. Thisinvention vrelates to that class of engines in which the pistonis driven in one di-' Lrection by atmospheric ressu're, the pressureyduced be ow that of the atmos heric by the condensation of highlyrareiie air admitted -th`ereto.' l y' .The object of the presentinvention is to obtain ajgreatei'amount of work in an engine witha lessconsumption of fuel b supplying thereto a workingfcharge ofhig lyrarefied air and in quickl 'condensing and dischargthe same, T eseobjects areobtained by iirst drawing the flame and products ofcombustion-from asu'itable bur-ner, into one end f of the cylinder, nextin displacing the heated air from the hot end of the cylinder anddeliverin it into the opposite or cooler end thereo and finally after amovement of the piston has been effected bythe condensation of thehighly rarefied air and gases in discharginahesame from the cylinder.

ith these and other objects in view, the

-fiifi'nvention consists of certain novel features of,1 construction,combination and arrange# n, .ment of parts, as'will -be more fullydescribed g and particularly `pointed out in the appended f vr4,0/*01`In the accompanying drawings, Figure 1 is fa plan view lof an enginec'onstructed'in accordance kWlth the 'invention with partsv c 'brokenaway; and Fig'.4 2 is acentral longi- 1 Y tudinal section thereof. 1

-1.5" yReferring more particularly e to l the drawings, which are forillustrative purposes only kand aretherefore' not drawn to scale, 1ind1.

cates a suitable base upon which is mounted the cylinder 2 of theengine7 this cylinder, as

Q shown, being approximately of s uareform in crosssectionandcomprisinga orizontal partition or Wall 3, which 1s sp aceu asuitable distance below the top wall of the cylinder' andextendsfrorntheyfronty end Ato Within a 'suitable'distanceofthe opppsite end.thereof,"v

leaving.:longitudinalfhot air passage 5 be Specification of LttensPatent. application mea neembe'rie, 190i. serial No. 406,*1'51."

on the o posits side o the piston being retween the partition and topwall of the cylnder. Th-e front end of the c linder is pro vided withvtwo longitudinaly spaced ap proximately rectangular ytransverse openings6 and 7 respectively,' the former of which 1s rv1erasneed May e5', 190e.

formedin the top wall and partition 3 and 4 and communicates with theextremefrontv end of the cylinder land the latter of. which is formed int e top wall of the cylinder and Ycommunicateswith the front en d ofthehot.. vairlna'ssage `5. A piston. 8 of thepro er form is arranged in the'cylinder-'beneath t e parti-A 'tion' or' Wall nthereo'r'. This pistonis provided with the usual rod erstem 9 which exs tends through the rearwall of the cylinder and is connected with afpairofflaterally spacedlinks 10 fixed to the crank 11'- of a crank shaft 12, the latter beingjournaled in suitable bearings 13 mounted upon thebase.v

The numeral 14 indicates the .slide lvalve whichis mounted upon theitopwall` of the cylinder to cover theopenings (j` and 7, this -valvebeing so constructed las' to establish com'hiunication between theseopenings and consequently' between 'opposite .ends of the sinF cylinderiiv'hen in one lfposltion and to cut-off communication in the nextposition.' This valve is actuated in the roper movement in the work ofthe engine y a valve'stem 15 .which extends through .-an u iight guideplate 21- arranged at the rear en ofthe cylinder and is connected withthe -upright arm 16- of a bell crank suitably mounted at the junction ofits arms upon the base, the other arm 1'7 of l the bell crank carryingaroller 17 which is dis osedv in the path of a cam 18 .of the proper sape fixed to the crankshaft 12.

Acoil spring 22 is arranged between the guide'plate vand a collai` 23formed on the .valve rod or stem for movin the latter and the slidevalve forwardly. iiamcgenerator 19-of any suitable form is mounted onthe base in front ofthe cylinder v and, ahoodi20 arrangedv in positiont'o conn voil burner or duct the flame and heated air directly'to theopening 6.' Ai1y-.-V wheel 18 is arranged at one end. of the crankshaft7V the purpose of which will be e vident. ,f i f In the operationo'fthis engine thus simply constructed as the piston 8 moves outwar theslide valve moves in thes'am'e direction 4 and discloses the opening Gthfrou hwhich is fdravvnv the hotfilame frox'n` the. u'rner 19.

As the piston reaches the endof its outward stroke the slide valvecloses the opening 6 andshuts ofi the inflow of hot'ai'rdllto the roofcylinder .and at the same time establishes communication between theopenings 6 and to condense until the iston hascompleted 7, the pistonin' receding forcing the rarefied air through saidopenin s' into the hotair passage and'behindt episton into the cooler end-of' the cylinder,Where it'continues its return stroke and as' 'thereby expelled .y all ofthe rareed air from the hot end'ofV the cylinder vto the cooler endthereof, under Whichconditions the vinternal ressure in the pylinder isfar belowr atmosp eric pressure.

en the pistonreaches the end ofits return stroke the valve 14 againopens with the result that the full atmospheric pressure is brought tobear uponf the piston to force it outward and cause it to draw in afresh sup- Aj ply of heated air'. 'AsA the piston moves voutv-topwallofthe'cylinder. v

(Ward the charge of condensed air is forced 20 throughthe exhaust port24 Vformed in the rom the foregloing' description, taken in lconnectionwith t e accompanying drawings, the constructionand operation of theinven-l tion Will be readily understood Without requiring a moreextended explanation.'

Various changes in the form, proportion and the minor details ofconstruction may be lresortedtowithout departing from-the princi-pleorsacn'icing any of the advantages of valve for controllin der, a pistonarranged therein, a flame gener# ator near the cylinder, means fordirecting the llame from the generator in one end ol' the `cylinder infront of thepiston, a slide fiame into the cylin er, and forestablishing or cuttin oi? communication between 'opposite en s thereof,a longitudinally dis iosd valve stem for operating the'slide valve, n,spring around the valve stem to move thc valve in one direction, anupright bell crank lever pivotally mounted near the cylinder.

and connected with the valve stem and l means for rocking said lever inone'direction against the .action of said spring.

In .testimony 'whereof we have hereunto set ou'r hands in presence oftwo subscribing Witnesses WILLIAM H. SPEIRS. ANTON HOLM. Witnesses:

WALTER TIBozzo.,

CHARLES STEINHAUER.

the -admission of the'

